Data Documents and Common Sense
What can be so difficult in creating a sensible standard for Structured Data Documents? To understand why they tend to get improved into unusable complexity, I’ll need to explain a bit of background.
2025-01-06
What can be so difficult in creating a sensible standard for Structured Data Documents? To understand why they tend to get improved into unusable complexity, I’ll need to explain a bit of background.
2025-01-06
2025-01-08 (first published: 2025-01-03)
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2024-12-20
1,669 reads
Ever wonder all the reasons that we use databases instead of file systems? While we don’t think of it too much anymore, the first reason that databases came into existence was to remove redundancies.
2024-04-12
In this article, Joe Celko gives us a history of the different character sets that are used in computing and how that can pertain to your usage in relational databases. Some of these you may have never heard of!
2023-05-17
The VALUES clause makes inserting literal values into a table simple and easy. In this article, Joe Celko explains how to use the VALUES clause.
2022-07-01
Joe Celko explains how several mathematical concepts, combinations, permutations, and derangements, relate to databases.
2022-06-01
Everyone learns to calculate an average in school, but, as Joe Celko shows, there are better ways to summarize data.
2022-03-25
Joe Celko explains how missing data is handled from the printing press to databases.
2021-07-26
Database systems have powerful features built right in that can ensure the integrity of data. In this article, Joe Celko discusses keys and constraints.
2021-05-28
By Steve Jones
lackout – n. the sudden awareness that you’re finally over someone, noticing that the...
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All Spark Connect Posts I have just finished an update for the spark connect dotnet...
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In Azure SQL DB, i want to merge records from the staging table to...
Full error message: SSRS error: The Value for the image 'Image1' has a constant...
We are in the process of upgrading to SQL Server 2022 and would like...
I have a table, called dbo.logger, in SQL Server 2022. I decide to add two new columns to this table with this code.
ALTER TABLE dbo.logger ADD CreateDate DATETIME CONSTRAINT dfGetDate DEFAULT GETDATE() GO ALTER TABLE dbo.logger ADD ModifyDate DATETIME DEFAULT dfGetDate GOWhat happens when I run these two batches? See possible answers